package org.apache.maven.plugin.prefix;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.Collections;
import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Model;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.RemoteRepository;

/**
 * Collects settings required to resolve a plugin prefix.
 * 
 * @since 3.0
 * @author Benjamin Bentmann
 */
public class DefaultPluginPrefixRequest implements PluginPrefixRequest {

  private String prefix;

  private List<String> pluginGroups = Collections.emptyList();

  private Model pom;

  private List<RemoteRepository> repositories = Collections.emptyList();

  private RepositorySystemSession session;

  /**
   * Creates an empty request.
   */
  public DefaultPluginPrefixRequest() {
  }

  /**
   * Creates a request for the specified plugin prefix and build session. The provided build session
   * will be used to configure repository settings. If the session has a current project, its plugin
   * repositories and model will be used as well.
   * 
   * @param prefix The plugin prefix to resolve, must not be {@code null}.
   * @param session The build session from which to derive further settings, must not be
   *        {@code null}.
   */
  public DefaultPluginPrefixRequest(String prefix, MavenSession session) {
    setPrefix(prefix);

    setRepositorySession(session.getRepositorySession());

    MavenProject project = session.getCurrentProject();
    if (project != null) {
      setRepositories(project.getRemotePluginRepositories());
      setPom(project.getModel());
    }

    setPluginGroups(session.getPluginGroups());
  }

  public String getPrefix() {
    return prefix;
  }

  public DefaultPluginPrefixRequest setPrefix(String prefix) {
    this.prefix = prefix;

    return this;
  }

  public List<String> getPluginGroups() {
    return pluginGroups;
  }

  public DefaultPluginPrefixRequest setPluginGroups(List<String> pluginGroups) {
    if (pluginGroups != null) {
      this.pluginGroups = pluginGroups;
    } else {
      this.pluginGroups = Collections.emptyList();
    }

    return this;
  }

  public Model getPom() {
    return pom;
  }

  public DefaultPluginPrefixRequest setPom(Model pom) {
    this.pom = pom;

    return this;
  }

  public List<RemoteRepository> getRepositories() {
    return repositories;
  }

  public DefaultPluginPrefixRequest setRepositories(List<RemoteRepository> repositories) {
    if (repositories != null) {
      this.repositories = repositories;
    } else {
      this.repositories = Collections.emptyList();
    }

    return this;
  }

  public RepositorySystemSession getRepositorySession() {
    return session;
  }

  public DefaultPluginPrefixRequest setRepositorySession(RepositorySystemSession session) {
    this.session = session;

    return this;
  }

}
